Menandros’s name day is March 31, the feast of Menandros the Martyr.
Churches that follow the Old (Julian) Calendar keep the same feast on April 13 of the civil calendar. See everything commemorated on March 31.
The saint behind the name
Menandros the Martyr
March 31, Martyr, Μένανδρος
St. Menandros is a martyr whose name the Greek synaxaria record for March 31 with the note that he was put to death by being dragged over sharp stones for his confession of Christ. Nothing further of his life has been preserved.
Also celebrating on March 31
These names share the feast, many of them other forms of the same name:
What to say on a name day
The Greek wish is Χρόνια Πολλά (Chronia Polla), “many years.” A call or a short message on the day is what people remember. See name day wishes you can send and what a name day is.